JPH06143496A - Multilayered film - Google Patents
Multilayered filmInfo
- Publication number
- JPH06143496A JPH06143496A JP30006792A JP30006792A JPH06143496A JP H06143496 A JPH06143496 A JP H06143496A JP 30006792 A JP30006792 A JP 30006792A JP 30006792 A JP30006792 A JP 30006792A JP H06143496 A JPH06143496 A JP H06143496A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- adhesive
- layers
- resin
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は包装用又は内装・外装用
材料の最外層に用いる汚れ防止又は汚れ除去用のフィル
ムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stain-preventing or stain-removing film used as the outermost layer of a packaging or interior / exterior material.
【０００２】[0002]
【従来の技術】床材、壁材、家具等の表面材、乗物の内
外装材として従来からの天然材料に代わって種々の合成
樹脂材料が用いられている。合成樹脂は一般に耐湿性、
耐汚染性、耐摩耗性に優れたものが用いられており、傷
つきにくく又汚れても合成洗剤等で比較的容易に汚れを
落とすことができることから、工業用、一般家庭用とし
ても広く利用されて来た。しかし、永年の使用の間には
表面創の劣化が生じたり、表面に多くの傷がついてしま
ったり、又蓄積された汚れは合成洗剤だけでは完全には
落とせず、変色・黄ばみが残ってしまう。更に有機溶剤
による洗浄を行った場合、合成樹脂の表面が有機溶剤に
侵されてしまうこともある。また狭い場所や高所で使用
され、汚れても通常の洗浄が出来ないこともあった。こ
れらの問題を解決する為に外層材料の上に保護層フィル
ムを貼って使用し、表面が汚れたり、損傷した場合には
保護層フィルムを剥す方法が考えられ、本体に汚れ・傷
をつけない様に使用することができた。しかし、保護層
フィルムが充分に本体に発着せずに使用途中で剥がれて
きたり、接着剤・粘着剤を用いて均一に貼った場合には
剥離時に本体表面が損傷したり、接着剤・粘着剤が本体
表面に残ったりして、本来の目的を充分に達成できなか
った。また剥離可能な塗膜をコーティングにより本体表
面上に形成させる方法も考えられたが、塗膜の寿命が短
い、塗工時に不要な部分にも付着する、有機溶剤を使用
するので必ずしも安全でない等の問題があった。2. Description of the Related Art Various synthetic resin materials have been used in place of conventional natural materials as floor materials, wall materials, surface materials such as furniture, and interior / exterior materials of vehicles. Synthetic resins are generally moisture resistant,
Since it has excellent stain resistance and abrasion resistance, it is not easily scratched and can be removed relatively easily with synthetic detergent etc., so it is widely used for industrial and general household use. Came. However, during long-term use, deterioration of the surface wound occurs, many scratches are made on the surface, and accumulated dirt cannot be completely removed with synthetic detergent alone, leaving discoloration / yellowing. . Further, when cleaning is performed with an organic solvent, the surface of the synthetic resin may be attacked by the organic solvent. Also, it was used in a narrow place or a high place, and even if it got dirty, it could not be washed normally. In order to solve these problems, a protective layer film is applied on the outer layer material and used, and if the surface is dirty or damaged, the protective layer film can be peeled off so that the main body does not get dirty or scratched. Could be used like. However, the protective layer film does not stick to the main body sufficiently and peels off during use, or the surface of the main body is damaged when peeled off if it is evenly applied with an adhesive or pressure sensitive adhesive. Remained on the surface of the main body, and the original purpose could not be achieved sufficiently. Also, a method of forming a peelable coating film on the surface of the main body by coating was considered, but the life of the coating film is short, it adheres to unnecessary parts during coating, and it is not always safe because it uses an organic solvent. There was a problem.
【０００３】[0003]
【発明が解決しようとする課題】本発明は外層材料の表
面層として従来の保護フィルムや塗膜での前述の問題を
解決する為表面層を剥離して新しい表面層を得んとして
樹脂の接着性、剥離性について研究した結果、ホットメ
ルトの接着層を用い予め表面層基材フィルムと重ね合わ
せた多層フィルムとすることにより適度の接着強度と剥
離強度を有する後剥離可能な外層材料を得るに至ったも
のである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems in the conventional protective film or coating as the surface layer of the outer layer material, the present invention peels off the surface layer to obtain a new surface layer for resin adhesion. As a result of researching the adhesiveness and peeling property, it is possible to obtain a post-peelable outer layer material having appropriate adhesive strength and peeling strength by using a hot-melt adhesive layer to form a multilayer film which is previously laminated with a surface layer base film. It has come.
【０００４】[0004]
【課題を解決するための手段】本発明は、基材樹脂
（Ａ）層、Ａ層との接着強度が１０〜３５０ｇ／２５ｍ
ｍ幅の接着性樹脂（Ｂ）層、Ａ層及びＢ層との接着強度
がともに５００ｇ／２５ｍｍ幅以上である接着性樹脂
（Ｃ）層が、外側よりＡ−Ｃ−Ｂの順に２回以上積層さ
れており最内層がＡ層であることを特徴とする多層フィ
ルムである。According to the present invention, the adhesive strength between the base resin (A) layer and the A layer is 10 to 350 g / 25 m.
The adhesive resin (B) layer having an m-width, the adhesive resin (C) layer having an adhesive strength with the A layer and the B layer of 500 g / 25 mm width or more, is twice or more in the order of A-C-B from the outside. It is a multilayer film that is laminated and has an innermost layer as an A layer.
【０００５】本発明に用いられる基材樹脂としてはポリ
塩化ビニル系樹脂、ポリスチレン、ポリプロピレン、高
密度ポリエチレン、低密度ポリエチレン、直鎮低密度ポ
リエチレン、エチレン−α−オレフィン共重合体、エチ
レン−酢酸ビニル共重合体、ポリエチレンテレフタレー
ト、ポリアミド、ポリカーボネート、エチレン−酢酸ビ
ニル共重合体ケン化物、ポリアクリロニトリル、ポリフ
ッ化ビニリデン、ポリメチルメタクリレート、ポリメチ
ルエタクリレート、ポリメチルペンテン、ポリウレタン
等があり、用途に応じて用いられる。The base resin used in the present invention is a polyvinyl chloride resin, polystyrene, polypropylene, high density polyethylene, low density polyethylene, direct low density polyethylene, ethylene-α-olefin copolymer, ethylene-vinyl acetate. There are copolymers, polyethylene terephthalate, polyamides, polycarbonates, saponified ethylene-vinyl acetate copolymers, polyacrylonitrile, polyvinylidene fluoride, polymethylmethacrylate, polymethylethacrylate, polymethylpentene, polyurethane, etc., depending on the application. Used.
【０００６】Ｂ層の接着性樹脂としてはエチレン−酢酸
ビニル共重合体、エチレン−酢酸ビニル共重合体ケン化
物、ポリスチレン、ポリプロピレン、高密度ポリエチレ
ン、低密度ポリエチレン、直鎮低密度ポリエチレン、エ
チレン−α−オレフィン共重合体、エチレン−メタクリ
ル酸共重合体、エチレン−メタクリル酸共重合体金属架
橋物及びこれらのマレイン酸グラフト変性物、或いは酢
酸ビニルの高グラフト付加物、更にポリアミド系エラス
トマー、スチレン−ブタジエンブロック共重合体、ポリ
ウレタン系エラストマー、イソプレン系エラストマー、
スチレン−ブタジエン−スチレン系ブロックコーポリマ
ーの水素添加物が単独又は２種類以上混合して用いられ
る。２種以上混合する目的としては低接着樹脂又は非接
着樹脂と高接着樹脂とを混合し、接着強度を調節して用
いることである。又接着強度を安定させる為に粘着付与
成分として酢酸ビニル含量２０％以上のエチレン−酢酸
ビニル共重合体、各種エラストマーを添加することもで
きる。Examples of the adhesive resin for the layer B include ethylene-vinyl acetate copolymer, saponified ethylene-vinyl acetate copolymer, polystyrene, polypropylene, high density polyethylene, low density polyethylene, direct compression low density polyethylene, ethylene-α. -Olefin copolymer, ethylene-methacrylic acid copolymer, ethylene-methacrylic acid copolymer, metal cross-linked product and maleic acid graft modified product thereof, or vinyl acetate high graft adduct, further polyamide elastomer, styrene-butadiene Block copolymer, polyurethane elastomer, isoprene elastomer,
Hydrogenated products of styrene-butadiene-styrene block copolymers may be used alone or in admixture of two or more. The purpose of mixing two or more kinds is to mix a low-adhesion resin or non-adhesive resin and a high-adhesion resin and adjust the adhesive strength before use. Further, in order to stabilize the adhesive strength, an ethylene-vinyl acetate copolymer having a vinyl acetate content of 20% or more and various elastomers can be added as a tackifying component.
【０００７】基材樹脂（Ａ）層との接着強度は１０〜３
５０ｇ／２５ｍｍ幅とする必要がある。接着強度が１０
ｇ／２５ｍｍ幅未満であると容易に剥離が起こってしま
い表面層としての機能を充分に果たし終える前に剥れて
しまい問題である。又接着強度が３５０ｇ／２５ｍｍ幅
よりも強いと剥離の際の剥離開始点を作ることが困難で
あったり、剥離層が破断したり、被接着面であるＡ層に
肌アレ、光沢ムラ、白化等の外観不良を生じてしまう。
又、剥離除去までの使用期間が６ケ月以内であれば１０
〜１２０ｇ／２５ｍｍ幅の接着強度、１年以上であれば
１５０〜３５０ｇ／２５ｍｍ幅の接着強度とすることが
実用上好ましいが使用環境により強弱の加減をする必要
が有り、厳密に限定されるものではない。The adhesive strength with the base resin (A) layer is 10 to 3
It must be 50 g / 25 mm wide. Adhesive strength is 10
If the width is less than g / 25 mm, peeling easily occurs, and peeling occurs before the function as the surface layer is sufficiently fulfilled, which is a problem. Also, if the adhesive strength is stronger than 350 g / 25 mm width, it is difficult to make a peeling starting point at the time of peeling, the peeling layer is broken, and the A layer, which is the surface to be bonded, has uneven skin, uneven gloss, and whitening. Etc. will result in poor appearance.
If the usage period before peeling and removal is within 6 months, 10
-120 g / 25 mm width adhesive strength, 150-350 g / 25 mm width adhesive strength is practically preferable for 1 year or more, but it is necessary to adjust the strength depending on the use environment, and it is strictly limited. is not.
【０００８】Ｃ層の接着層樹脂としては低密度ポリエチ
レン、高密度ポリエチレン、直鎮低密度ポリエチレン、
ポリプロピレン、ポリスチレン、エチレン−α−オレフ
ィン共重合体、エチレン−酢酸ビニル共重合体等のマレ
イン酸グラフト付加物、酢酸ビニル含量２０％以上のエ
チレン−酢酸ビニル共重合体、エチレン−酢酸ビニル共
重合体部分ケン化物、エチレン−アクリル酸エチル−無
水マレイン酸共重合体、ポリメチルメタクリレート、ス
チレン−ブタジエンブロック共重合体変性物等が有り、
基材樹脂（Ａ）層と接着層（Ｂ）層の組み合わせにより
選定して用いる。 本発明のフィルムの製造方法として
は共押出法が最も適しており、完全に加熱溶融された樹
脂がシーティングダイ内部で積層され一定の高圧力下で
接着されるので精度良く安定した接着強度が得られる。
本発明のフィルムは本体への接着の為、粘着剤・接着剤
を内側のＡ層に塗布して用いることもある。As the adhesive layer resin for the C layer, low density polyethylene, high density polyethylene, direct compression low density polyethylene,
Maleic acid graft adducts such as polypropylene, polystyrene, ethylene-α-olefin copolymers, ethylene-vinyl acetate copolymers, ethylene-vinyl acetate copolymers having a vinyl acetate content of 20% or more, ethylene-vinyl acetate copolymers There are partially saponified products, ethylene-ethyl acrylate-maleic anhydride copolymers, polymethylmethacrylate, styrene-butadiene block copolymer modified products, and the like.
It is selected and used depending on the combination of the base resin (A) layer and the adhesive layer (B) layer. The coextrusion method is most suitable as the method for producing the film of the present invention, and the completely heat-melted resin is laminated inside the sheeting die and adhered under a constant high pressure, so that accurate and stable adhesive strength can be obtained. To be
Since the film of the present invention adheres to the main body, a pressure-sensitive adhesive / adhesive may be applied to the inner layer A for use.
【０００９】[0009]
【実施例】７台の押出機を用いて加熱溶融した樹脂を押
出し、７層のシーティングダイに導き共押出法により実
施例１〜３のフィルムを作成し、又実施例２のフィルム
２枚を内層と外層とを合わせて１９０℃で熱圧着させ実
施例４のフィルムを作成し、Ｂ層とＡ層の間の接着強度
を測定した。測定はフィルムを２５ｍｍ幅の短冊状試料
とし、オートグラフを用いて２００ｍｍ／分の速度で行
った。各層使用樹脂と各層厚み及び接着強度は表１及び
表２に示したとおであった。 ＰＭＭＡ：ポリメチルメタクリレート（ビカット軟化点115℃、比重1.19） ＥＶＯＨ：エチレン−酢酸ビニル共重合体ケン化物 （融点１６４℃、エチレン含量４４モル％） ＰＡ ：６−ナイロン 融点２２１℃、平均分子量３０，０００ ＡＤ１：マレイン酸変性低密度ポリエチレン ６０重量部 低密度ポリエチレン ４０重量部 ＡＤ２：マレイン酸変性低密度ポリエチレン ＡＤ３：エチレン−酢酸ビニル共重合体（酢酸ビニル含量１０％）９０重量部 エチレン−酢酸ビニル共重合体部分ケン化物 １０重量部 ＡＤ４：マレイン酸変性エチレン−酢酸ビニル共重合体 ＡＤ５：エチレン−メタクリル酸共重合体亜鉛架橋物 ＡＤ６：マレイン酸変性低密度ポリエチレン[Examples] The resin which was heated and melted was extruded using seven extruders, introduced into a seven-layer sheeting die, and the films of Examples 1 to 3 were prepared by the coextrusion method. The inner layer and the outer layer were combined and thermocompressed at 190 ° C. to prepare the film of Example 4, and the adhesive strength between the B layer and the A layer was measured. The measurement was performed at a speed of 200 mm / min by using an autograph with the film as a strip sample having a width of 25 mm. The resin used for each layer, the thickness of each layer, and the adhesive strength are shown in Tables 1 and 2. PMMA: Polymethylmethacrylate (Vicat softening point 115 ° C, specific gravity 1.19) EVOH: Saponified ethylene-vinyl acetate copolymer (melting point 164 ° C, ethylene content 44 mol%) PA: 6-nylon melting point 221 ° C, average molecular weight 30, 000 AD1: Maleic acid-modified low-density polyethylene 60 parts by weight Low-density polyethylene 40 parts by weight AD2: Maleic acid-modified low-density polyethylene AD3: Ethylene-vinyl acetate copolymer (vinyl acetate content 10%) 90 parts by weight Ethylene-vinyl acetate copolymer Partially saponified polymer 10 parts by weight AD4: Maleic acid modified ethylene-vinyl acetate copolymer AD5: Ethylene-methacrylic acid copolymer zinc crosslinked product AD6: Maleic acid modified low density polyethylene
【００１０】[0010]
【表１】 [Table 1]
【００１１】[0011]
【表２】 [Table 2]
【００１２】[0012]
【発明の効果】本発明の多層フィルムを外層材料として
用いると一定期間使用後に表面層を剥離することによ
り、汚染または損傷した表面層を取り去り、同材質の新
しい表面層を得ることができ、良好な表面状態で長期間
使用することができる。また、使用途中に使用者の意志
によらず剥離することも無い。When the multilayer film of the present invention is used as the outer layer material, the surface layer is peeled off after a certain period of use, whereby the contaminated or damaged surface layer can be removed and a new surface layer of the same material can be obtained. It can be used for a long time with various surface conditions. Further, it does not peel off during use regardless of the user's intention.
【図１】本発明の多層フィルムの断面図である。FIG. 1 is a cross-sectional view of a multilayer film of the present invention.
Claims (1)
１０〜３５０ｇ／ｍｍ幅の接着性樹脂（Ｂ）層、Ａ層及
びＢ層との接着強度がともに５００ｇ／２５ｍｍ幅以上
である接着性樹脂（Ｃ）層が外側よりＡ−Ｃ−Ｂの順に
２回以上積層されており最内層がＡ層であることを特徴
とする多層フィルム。1. A base resin (A) layer, an adhesive resin (B) layer having an adhesive strength with the A layer of 10 to 350 g / mm width, and an adhesive strength with the A layer and B layer are both 500 g / 25 mm width. A multilayer film, wherein the above-mentioned adhesive resin (C) layers are laminated two or more times in the order of A-C-B from the outside, and the innermost layer is the A layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04300067A JP3098338B2 (en) | 1992-11-10 | 1992-11-10 | Multilayer film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04300067A JP3098338B2 (en) | 1992-11-10 | 1992-11-10 | Multilayer film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06143496A true JPH06143496A (en) | 1994-05-24 |
| JP3098338B2 JP3098338B2 (en) | 2000-10-16 |
Family
ID=17880305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04300067A Expired - Fee Related JP3098338B2 (en) | 1992-11-10 | 1992-11-10 | Multilayer film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3098338B2 (en) |
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| CN104057675B (en) * | 2014-06-28 | 2016-05-25 | 安徽格林开思茂光电科技股份有限公司 | A kind of hard screen protection cuticula of double faced adhesive and production thereof, using method |
-
1992
- 1992-11-10 JP JP04300067A patent/JP3098338B2/en not_active Expired - Fee Related
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